Modular track for autonomous vehicles

A toy track comprising:

• a plurality of modular track sections adapted to be assembled into a closed track for autonomous vehicles and configured to be assembled on a surface, the closed track having an inside edge to define on the surface an area between the track sections of the dosed track, and wherein one or more of the track sections includes an cross-sectional profile defined to include:
• an outside shoulder region being curved upwardly to an outer terminal edge for maintaining said autonomous vehicles on the track sections, wherein the outer terminal edge is positioned above the inside edge;
• a first ridge positioned between the outside shoulder region and inside edge, the first ridge configured to substantially maintain contact between an inside portion of a wheel on the autonomous vehicle;
• a transition region having a first terminus proximal to the first ridge and a second terminus proximal to the inside edge, and wherein the first terminus is positioned above the second terminus;
• and
• wherein the inside edge is positioned adjacent the surface, to define an entrance and exit of the one or more track section to the area on the surface between the track section allowing the autonomous vehicles to enter and exit the one or more track sections and the arena.